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Finding the Fourth Proportional to 239,394.18, 358,980.86 and 70,854.24

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Solution

The fourth proportional to 239,394.18, 358,980.86 and 70,854.24 is: 106,248.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,394.18 : 358,980.86 = 70,854.24 : x
  2. Step 2: Convert to fraction form
    239,394.18/358,980.86 = 70,854.24/x
  3. Step 3: Cross multiply
    239,394.18x = 358,980.86 × 70,854.24
  4. Step 4: Simplify right side
    239,394.18x = 25,435,316,009.85
  5. Step 5: Solve for x
    x = 25,435,316,009.85/239,394.18
  6. Step 6: Final answer
    x = 106,248.68

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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.