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Finding the Fourth Proportional to 59,129.16, 88,661.16 and 40,430.28

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Solution

The fourth proportional to 59,129.16, 88,661.16 and 40,430.28 is: 60,623.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,129.16 : 88,661.16 = 40,430.28 : x
  2. Step 2: Convert to fraction form
    59,129.16/88,661.16 = 40,430.28/x
  3. Step 3: Cross multiply
    59,129.16x = 88,661.16 × 40,430.28
  4. Step 4: Simplify right side
    59,129.16x = 3,584,595,523.92
  5. Step 5: Solve for x
    x = 3,584,595,523.92/59,129.16
  6. Step 6: Final answer
    x = 60,623.14

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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.