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Finding the Fourth Proportional to 144,420.90, 216,631.35 and 44,572.20

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Solution

The fourth proportional to 144,420.90, 216,631.35 and 44,572.20 is: 66,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,420.90 : 216,631.35 = 44,572.20 : x
  2. Step 2: Convert to fraction form
    144,420.90/216,631.35 = 44,572.20/x
  3. Step 3: Cross multiply
    144,420.90x = 216,631.35 × 44,572.20
  4. Step 4: Simplify right side
    144,420.90x = 9,655,735,858.47
  5. Step 5: Solve for x
    x = 9,655,735,858.47/144,420.90
  6. Step 6: Final answer
    x = 66,858.30

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1.5x scale

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.