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Finding the Fourth Proportional to 106,612.16, 147,127.08 and 58,868.54

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Solution

The fourth proportional to 106,612.16, 147,127.08 and 58,868.54 is: 81,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,612.16 : 147,127.08 = 58,868.54 : x
  2. Step 2: Convert to fraction form
    106,612.16/147,127.08 = 58,868.54/x
  3. Step 3: Cross multiply
    106,612.16x = 147,127.08 × 58,868.54
  4. Step 4: Simplify right side
    106,612.16x = 8,661,156,394.06
  5. Step 5: Solve for x
    x = 8,661,156,394.06/106,612.16
  6. Step 6: Final answer
    x = 81,239.85

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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.