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Finding the Fourth Proportional to 127,646.71, 176,176.08 and 73,931.71

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Solution

The fourth proportional to 127,646.71, 176,176.08 and 73,931.71 is: 102,039.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,646.71 : 176,176.08 = 73,931.71 : x
  2. Step 2: Convert to fraction form
    127,646.71/176,176.08 = 73,931.71/x
  3. Step 3: Cross multiply
    127,646.71x = 176,176.08 × 73,931.71
  4. Step 4: Simplify right side
    127,646.71x = 13,024,998,137.81
  5. Step 5: Solve for x
    x = 13,024,998,137.81/127,646.71
  6. Step 6: Final answer
    x = 102,039.44

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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.