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Finding the Fourth Proportional to 102,557.90, 153,901.65 and 60,437.90

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Solution

The fourth proportional to 102,557.90, 153,901.65 and 60,437.90 is: 90,695.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,557.90 : 153,901.65 = 60,437.90 : x
  2. Step 2: Convert to fraction form
    102,557.90/153,901.65 = 60,437.90/x
  3. Step 3: Cross multiply
    102,557.90x = 153,901.65 × 60,437.90
  4. Step 4: Simplify right side
    102,557.90x = 9,301,492,532.54
  5. Step 5: Solve for x
    x = 9,301,492,532.54/102,557.90
  6. Step 6: Final answer
    x = 90,695.04

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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.