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Finding the Fourth Proportional to 247,357.99, 341,354.13 and 139,925.74

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Solution

The fourth proportional to 247,357.99, 341,354.13 and 139,925.74 is: 193,097.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,357.99 : 341,354.13 = 139,925.74 : x
  2. Step 2: Convert to fraction form
    247,357.99/341,354.13 = 139,925.74/x
  3. Step 3: Cross multiply
    247,357.99x = 341,354.13 × 139,925.74
  4. Step 4: Simplify right side
    247,357.99x = 47,764,227,535.54
  5. Step 5: Solve for x
    x = 47,764,227,535.54/247,357.99
  6. Step 6: Final answer
    x = 193,097.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.