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Finding the Fourth Proportional to 100,864.30, 151,296.45 and 48,376.30

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Solution

The fourth proportional to 100,864.30, 151,296.45 and 48,376.30 is: 72,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,864.30 : 151,296.45 = 48,376.30 : x
  2. Step 2: Convert to fraction form
    100,864.30/151,296.45 = 48,376.30/x
  3. Step 3: Cross multiply
    100,864.30x = 151,296.45 × 48,376.30
  4. Step 4: Simplify right side
    100,864.30x = 7,319,162,454.14
  5. Step 5: Solve for x
    x = 7,319,162,454.14/100,864.30
  6. Step 6: Final answer
    x = 72,564.45

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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.