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Finding the Fourth Proportional to 119,646.69, 165,101.15 and 70,580.66

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Solution

The fourth proportional to 119,646.69, 165,101.15 and 70,580.66 is: 97,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,646.69 : 165,101.15 = 70,580.66 : x
  2. Step 2: Convert to fraction form
    119,646.69/165,101.15 = 70,580.66/x
  3. Step 3: Cross multiply
    119,646.69x = 165,101.15 × 70,580.66
  4. Step 4: Simplify right side
    119,646.69x = 11,652,946,955.35
  5. Step 5: Solve for x
    x = 11,652,946,955.35/119,646.69
  6. Step 6: Final answer
    x = 97,394.65

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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.