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Finding the Fourth Proportional to 144,416.32, 216,663.12 and 44,572.48

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Solution

The fourth proportional to 144,416.32, 216,663.12 and 44,572.48 is: 66,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,416.32 : 216,663.12 = 44,572.48 : x
  2. Step 2: Convert to fraction form
    144,416.32/216,663.12 = 44,572.48/x
  3. Step 3: Cross multiply
    144,416.32x = 216,663.12 × 44,572.48
  4. Step 4: Simplify right side
    144,416.32x = 9,657,212,582.94
  5. Step 5: Solve for x
    x = 9,657,212,582.94/144,416.32
  6. Step 6: Final answer
    x = 66,870.65

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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.