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Finding the Fourth Proportional to 96,271.80, 144,407.70 and 72,943.80

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Solution

The fourth proportional to 96,271.80, 144,407.70 and 72,943.80 is: 109,415.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,271.80 : 144,407.70 = 72,943.80 : x
  2. Step 2: Convert to fraction form
    96,271.80/144,407.70 = 72,943.80/x
  3. Step 3: Cross multiply
    96,271.80x = 144,407.70 × 72,943.80
  4. Step 4: Simplify right side
    96,271.80x = 10,533,646,387.26
  5. Step 5: Solve for x
    x = 10,533,646,387.26/96,271.80
  6. Step 6: Final answer
    x = 109,415.70

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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.