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Finding the Fourth Proportional to 158,614.11, 218,904.66 and 101,306.07

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Solution

The fourth proportional to 158,614.11, 218,904.66 and 101,306.07 is: 139,813.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,614.11 : 218,904.66 = 101,306.07 : x
  2. Step 2: Convert to fraction form
    158,614.11/218,904.66 = 101,306.07/x
  3. Step 3: Cross multiply
    158,614.11x = 218,904.66 × 101,306.07
  4. Step 4: Simplify right side
    158,614.11x = 22,176,370,809.29
  5. Step 5: Solve for x
    x = 22,176,370,809.29/158,614.11
  6. Step 6: Final answer
    x = 139,813.35

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1.5x scale

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.