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Finding the Fourth Proportional to 96,951.80, 145,427.70 and 63,126.20

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Solution

The fourth proportional to 96,951.80, 145,427.70 and 63,126.20 is: 94,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,951.80 : 145,427.70 = 63,126.20 : x
  2. Step 2: Convert to fraction form
    96,951.80/145,427.70 = 63,126.20/x
  3. Step 3: Cross multiply
    96,951.80x = 145,427.70 × 63,126.20
  4. Step 4: Simplify right side
    96,951.80x = 9,180,298,075.74
  5. Step 5: Solve for x
    x = 9,180,298,075.74/96,951.80
  6. Step 6: Final answer
    x = 94,689.30

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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.