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Finding the Fourth Proportional to 107,130.78, 147,841.71 and 59,384.94

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Solution

The fourth proportional to 107,130.78, 147,841.71 and 59,384.94 is: 81,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,130.78 : 147,841.71 = 59,384.94 : x
  2. Step 2: Convert to fraction form
    107,130.78/147,841.71 = 59,384.94/x
  3. Step 3: Cross multiply
    107,130.78x = 147,841.71 × 59,384.94
  4. Step 4: Simplify right side
    107,130.78x = 8,779,571,077.85
  5. Step 5: Solve for x
    x = 8,779,571,077.85/107,130.78
  6. Step 6: Final answer
    x = 81,951.90

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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.