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Finding the Fourth Proportional to 239,047.80, 358,488.14 and 70,523.40

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Solution

The fourth proportional to 239,047.80, 358,488.14 and 70,523.40 is: 105,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,047.80 : 358,488.14 = 70,523.40 : x
  2. Step 2: Convert to fraction form
    239,047.80/358,488.14 = 70,523.40/x
  3. Step 3: Cross multiply
    239,047.80x = 358,488.14 × 70,523.40
  4. Step 4: Simplify right side
    239,047.80x = 25,281,802,139.86
  5. Step 5: Solve for x
    x = 25,281,802,139.86/239,047.80
  6. Step 6: Final answer
    x = 105,760.45

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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.