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Finding the Fourth Proportional to 343,865.80, 515,798.70 and 94,547.80

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Solution

The fourth proportional to 343,865.80, 515,798.70 and 94,547.80 is: 141,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,865.80 : 515,798.70 = 94,547.80 : x
  2. Step 2: Convert to fraction form
    343,865.80/515,798.70 = 94,547.80/x
  3. Step 3: Cross multiply
    343,865.80x = 515,798.70 × 94,547.80
  4. Step 4: Simplify right side
    343,865.80x = 48,767,632,327.86
  5. Step 5: Solve for x
    x = 48,767,632,327.86/343,865.80
  6. Step 6: Final answer
    x = 141,821.70

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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.