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Finding the Fourth Proportional to 234,909.80, 352,403.10 and 77,095.40

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Solution

The fourth proportional to 234,909.80, 352,403.10 and 77,095.40 is: 115,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,909.80 : 352,403.10 = 77,095.40 : x
  2. Step 2: Convert to fraction form
    234,909.80/352,403.10 = 77,095.40/x
  3. Step 3: Cross multiply
    234,909.80x = 352,403.10 × 77,095.40
  4. Step 4: Simplify right side
    234,909.80x = 27,168,657,955.74
  5. Step 5: Solve for x
    x = 27,168,657,955.74/234,909.80
  6. Step 6: Final answer
    x = 115,655.70

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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.