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Finding the Fourth Proportional to 144,005.90, 215,630.85 and 101,657.30

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Solution

The fourth proportional to 144,005.90, 215,630.85 and 101,657.30 is: 152,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,005.90 : 215,630.85 = 101,657.30 : x
  2. Step 2: Convert to fraction form
    144,005.90/215,630.85 = 101,657.30/x
  3. Step 3: Cross multiply
    144,005.90x = 215,630.85 × 101,657.30
  4. Step 4: Simplify right side
    144,005.90x = 21,920,450,007.71
  5. Step 5: Solve for x
    x = 21,920,450,007.71/144,005.90
  6. Step 6: Final answer
    x = 152,219.11

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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.