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Finding the Fourth Proportional to 79,365.70, 109,529.59 and 52,461.55

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Solution

The fourth proportional to 79,365.70, 109,529.59 and 52,461.55 is: 72,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,365.70 : 109,529.59 = 52,461.55 : x
  2. Step 2: Convert to fraction form
    79,365.70/109,529.59 = 52,461.55/x
  3. Step 3: Cross multiply
    79,365.70x = 109,529.59 × 52,461.55
  4. Step 4: Simplify right side
    79,365.70x = 5,746,091,657.29
  5. Step 5: Solve for x
    x = 5,746,091,657.29/79,365.70
  6. Step 6: Final answer
    x = 72,400.19

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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.