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Finding the Fourth Proportional to 127,341.80, 191,012.70 and 97,817.30

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Solution

The fourth proportional to 127,341.80, 191,012.70 and 97,817.30 is: 146,725.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,341.80 : 191,012.70 = 97,817.30 : x
  2. Step 2: Convert to fraction form
    127,341.80/191,012.70 = 97,817.30/x
  3. Step 3: Cross multiply
    127,341.80x = 191,012.70 × 97,817.30
  4. Step 4: Simplify right side
    127,341.80x = 18,684,346,579.71
  5. Step 5: Solve for x
    x = 18,684,346,579.71/127,341.80
  6. Step 6: Final answer
    x = 146,725.95

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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.