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Finding the Fourth Proportional to 144,305.90, 216,458.85 and 65,573.90

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Solution

The fourth proportional to 144,305.90, 216,458.85 and 65,573.90 is: 98,360.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,305.90 : 216,458.85 = 65,573.90 : x
  2. Step 2: Convert to fraction form
    144,305.90/216,458.85 = 65,573.90/x
  3. Step 3: Cross multiply
    144,305.90x = 216,458.85 × 65,573.90
  4. Step 4: Simplify right side
    144,305.90x = 14,194,050,984.02
  5. Step 5: Solve for x
    x = 14,194,050,984.02/144,305.90
  6. Step 6: Final answer
    x = 98,360.85

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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.