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Finding the Fourth Proportional to 119,693.69, 165,209.08 and 70,678.26

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Solution

The fourth proportional to 119,693.69, 165,209.08 and 70,678.26 is: 97,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,693.69 : 165,209.08 = 70,678.26 : x
  2. Step 2: Convert to fraction form
    119,693.69/165,209.08 = 70,678.26/x
  3. Step 3: Cross multiply
    119,693.69x = 165,209.08 × 70,678.26
  4. Step 4: Simplify right side
    119,693.69x = 11,676,690,310.60
  5. Step 5: Solve for x
    x = 11,676,690,310.60/119,693.69
  6. Step 6: Final answer
    x = 97,554.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.