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Finding the Fourth Proportional to 72,802.59, 100,442.48 and 44,131.47

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Solution

The fourth proportional to 72,802.59, 100,442.48 and 44,131.47 is: 60,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,802.59 : 100,442.48 = 44,131.47 : x
  2. Step 2: Convert to fraction form
    72,802.59/100,442.48 = 44,131.47/x
  3. Step 3: Cross multiply
    72,802.59x = 100,442.48 × 44,131.47
  4. Step 4: Simplify right side
    72,802.59x = 4,432,674,072.19
  5. Step 5: Solve for x
    x = 4,432,674,072.19/72,802.59
  6. Step 6: Final answer
    x = 60,886.21

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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.