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Finding the Fourth Proportional to 144,476.80, 216,715.20 and 97,237.60

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Solution

The fourth proportional to 144,476.80, 216,715.20 and 97,237.60 is: 145,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,476.80 : 216,715.20 = 97,237.60 : x
  2. Step 2: Convert to fraction form
    144,476.80/216,715.20 = 97,237.60/x
  3. Step 3: Cross multiply
    144,476.80x = 216,715.20 × 97,237.60
  4. Step 4: Simplify right side
    144,476.80x = 21,072,865,931.52
  5. Step 5: Solve for x
    x = 21,072,865,931.52/144,476.80
  6. Step 6: Final answer
    x = 145,856.40

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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.