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Finding the Fourth Proportional to 122,465.92, 183,705.72 and 38,237.72

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Solution

The fourth proportional to 122,465.92, 183,705.72 and 38,237.72 is: 57,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,465.92 : 183,705.72 = 38,237.72 : x
  2. Step 2: Convert to fraction form
    122,465.92/183,705.72 = 38,237.72/x
  3. Step 3: Cross multiply
    122,465.92x = 183,705.72 × 38,237.72
  4. Step 4: Simplify right side
    122,465.92x = 7,024,487,883.76
  5. Step 5: Solve for x
    x = 7,024,487,883.76/122,465.92
  6. Step 6: Final answer
    x = 57,358.72

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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.