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Finding the Fourth Proportional to 127,800,547.80, 191,700,821.70 and 127,800,547.80

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Solution

The fourth proportional to 127,800,547.80, 191,700,821.70 and 127,800,547.80 is: 191,700,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,800,547.80 : 191,700,821.70 = 127,800,547.80 : x
  2. Step 2: Convert to fraction form
    127,800,547.80/191,700,821.70 = 127,800,547.80/x
  3. Step 3: Cross multiply
    127,800,547.80x = 191,700,821.70 × 127,800,547.80
  4. Step 4: Simplify right side
    127,800,547.80x = 24,499,470,026,970,124
  5. Step 5: Solve for x
    x = 24,499,470,026,970,124/127,800,547.80
  6. Step 6: Final answer
    x = 191,700,821.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.