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Finding the Fourth Proportional to 70,616.81, 106,306.98 and 64,332.08

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Solution

The fourth proportional to 70,616.81, 106,306.98 and 64,332.08 is: 96,845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,616.81 : 106,306.98 = 64,332.08 : x
  2. Step 2: Convert to fraction form
    70,616.81/106,306.98 = 64,332.08/x
  3. Step 3: Cross multiply
    70,616.81x = 106,306.98 × 64,332.08
  4. Step 4: Simplify right side
    70,616.81x = 6,838,948,610.38
  5. Step 5: Solve for x
    x = 6,838,948,610.38/70,616.81
  6. Step 6: Final answer
    x = 96,845.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.