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Finding the Fourth Proportional to 92,762.57, 128,012.39 and 52,475.48

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Solution

The fourth proportional to 92,762.57, 128,012.39 and 52,475.48 is: 72,416.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,762.57 : 128,012.39 = 52,475.48 : x
  2. Step 2: Convert to fraction form
    92,762.57/128,012.39 = 52,475.48/x
  3. Step 3: Cross multiply
    92,762.57x = 128,012.39 × 52,475.48
  4. Step 4: Simplify right side
    92,762.57x = 6,717,510,708.76
  5. Step 5: Solve for x
    x = 6,717,510,708.76/92,762.57
  6. Step 6: Final answer
    x = 72,416.18

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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.