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Finding the Fourth Proportional to 98,547.80, 147,821.70 and 98,547.80

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Solution

The fourth proportional to 98,547.80, 147,821.70 and 98,547.80 is: 147,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,547.80 : 147,821.70 = 98,547.80 : x
  2. Step 2: Convert to fraction form
    98,547.80/147,821.70 = 98,547.80/x
  3. Step 3: Cross multiply
    98,547.80x = 147,821.70 × 98,547.80
  4. Step 4: Simplify right side
    98,547.80x = 14,567,503,327.26
  5. Step 5: Solve for x
    x = 14,567,503,327.26/98,547.80
  6. Step 6: Final answer
    x = 147,821.70

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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.