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Finding the Fourth Proportional to 123,862.60, 170,970.95 and 113,024.67

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Solution

The fourth proportional to 123,862.60, 170,970.95 and 113,024.67 is: 156,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,862.60 : 170,970.95 = 113,024.67 : x
  2. Step 2: Convert to fraction form
    123,862.60/170,970.95 = 113,024.67/x
  3. Step 3: Cross multiply
    123,862.60x = 170,970.95 × 113,024.67
  4. Step 4: Simplify right side
    123,862.60x = 19,323,934,844.76
  5. Step 5: Solve for x
    x = 19,323,934,844.76/123,862.60
  6. Step 6: Final answer
    x = 156,011.05

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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.