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Finding the Fourth Proportional to 119,281.15, 164,606.14 and 65,565.01

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Solution

The fourth proportional to 119,281.15, 164,606.14 and 65,565.01 is: 90,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,281.15 : 164,606.14 = 65,565.01 : x
  2. Step 2: Convert to fraction form
    119,281.15/164,606.14 = 65,565.01/x
  3. Step 3: Cross multiply
    119,281.15x = 164,606.14 × 65,565.01
  4. Step 4: Simplify right side
    119,281.15x = 10,792,403,626.68
  5. Step 5: Solve for x
    x = 10,792,403,626.68/119,281.15
  6. Step 6: Final answer
    x = 90,478.70

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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.