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Finding the Fourth Proportional to 96,312.30, 144,468.45 and 72,984.30

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Solution

The fourth proportional to 96,312.30, 144,468.45 and 72,984.30 is: 109,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,312.30 : 144,468.45 = 72,984.30 : x
  2. Step 2: Convert to fraction form
    96,312.30/144,468.45 = 72,984.30/x
  3. Step 3: Cross multiply
    96,312.30x = 144,468.45 × 72,984.30
  4. Step 4: Simplify right side
    96,312.30x = 10,543,928,695.34
  5. Step 5: Solve for x
    x = 10,543,928,695.34/96,312.30
  6. Step 6: Final answer
    x = 109,476.45

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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.