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Finding the Fourth Proportional to 127,417.71, 191,127.18 and 38,671.99

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Solution

The fourth proportional to 127,417.71, 191,127.18 and 38,671.99 is: 58,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,417.71 : 191,127.18 = 38,671.99 : x
  2. Step 2: Convert to fraction form
    127,417.71/191,127.18 = 38,671.99/x
  3. Step 3: Cross multiply
    127,417.71x = 191,127.18 × 38,671.99
  4. Step 4: Simplify right side
    127,417.71x = 7,391,267,341.37
  5. Step 5: Solve for x
    x = 7,391,267,341.37/127,417.71
  6. Step 6: Final answer
    x = 58,008.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.