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Finding the Fourth Proportional to 110,810.40, 152,931.48 and 62,413.92

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Solution

The fourth proportional to 110,810.40, 152,931.48 and 62,413.92 is: 86,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,810.40 : 152,931.48 = 62,413.92 : x
  2. Step 2: Convert to fraction form
    110,810.40/152,931.48 = 62,413.92/x
  3. Step 3: Cross multiply
    110,810.40x = 152,931.48 × 62,413.92
  4. Step 4: Simplify right side
    110,810.40x = 9,545,053,158.20
  5. Step 5: Solve for x
    x = 9,545,053,158.20/110,810.40
  6. Step 6: Final answer
    x = 86,138.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.