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Finding the Fourth Proportional to 136,203.78, 187,854.84 and 116,127.12

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Solution

The fourth proportional to 136,203.78, 187,854.84 and 116,127.12 is: 160,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,203.78 : 187,854.84 = 116,127.12 : x
  2. Step 2: Convert to fraction form
    136,203.78/187,854.84 = 116,127.12/x
  3. Step 3: Cross multiply
    136,203.78x = 187,854.84 × 116,127.12
  4. Step 4: Simplify right side
    136,203.78x = 21,815,041,547.26
  5. Step 5: Solve for x
    x = 21,815,041,547.26/136,203.78
  6. Step 6: Final answer
    x = 160,164.73

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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.