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Finding the Fourth Proportional to 119,587, 165,030.06 and 69,315.16

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Solution

The fourth proportional to 119,587, 165,030.06 and 69,315.16 is: 95,654.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,587 : 165,030.06 = 69,315.16 : x
  2. Step 2: Convert to fraction form
    119,587/165,030.06 = 69,315.16/x
  3. Step 3: Cross multiply
    119,587x = 165,030.06 × 69,315.16
  4. Step 4: Simplify right side
    119,587x = 11,439,085,013.71
  5. Step 5: Solve for x
    x = 11,439,085,013.71/119,587
  6. Step 6: Final answer
    x = 95,654.92

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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.