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Finding the Fourth Proportional to 108,653.20, 163,417.20 and 97,280.80

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Solution

The fourth proportional to 108,653.20, 163,417.20 and 97,280.80 is: 146,312.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,653.20 : 163,417.20 = 97,280.80 : x
  2. Step 2: Convert to fraction form
    108,653.20/163,417.20 = 97,280.80/x
  3. Step 3: Cross multiply
    108,653.20x = 163,417.20 × 97,280.80
  4. Step 4: Simplify right side
    108,653.20x = 15,897,355,949.76
  5. Step 5: Solve for x
    x = 15,897,355,949.76/108,653.20
  6. Step 6: Final answer
    x = 146,312.82

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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.