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Finding the Fourth Proportional to 75,445.93, 104,124.45 and 45,247.88

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Solution

The fourth proportional to 75,445.93, 104,124.45 and 45,247.88 is: 62,447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,445.93 : 104,124.45 = 45,247.88 : x
  2. Step 2: Convert to fraction form
    75,445.93/104,124.45 = 45,247.88/x
  3. Step 3: Cross multiply
    75,445.93x = 104,124.45 × 45,247.88
  4. Step 4: Simplify right side
    75,445.93x = 4,711,411,048.66
  5. Step 5: Solve for x
    x = 4,711,411,048.66/75,445.93
  6. Step 6: Final answer
    x = 62,447.52

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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.