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Finding the Fourth Proportional to 108,711.10, 163,066.65 and 108,711.10

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Solution

The fourth proportional to 108,711.10, 163,066.65 and 108,711.10 is: 163,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,711.10 : 163,066.65 = 108,711.10 : x
  2. Step 2: Convert to fraction form
    108,711.10/163,066.65 = 108,711.10/x
  3. Step 3: Cross multiply
    108,711.10x = 163,066.65 × 108,711.10
  4. Step 4: Simplify right side
    108,711.10x = 17,727,154,894.82
  5. Step 5: Solve for x
    x = 17,727,154,894.82/108,711.10
  6. Step 6: Final answer
    x = 163,066.65

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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.