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Finding the Fourth Proportional to 250,885.60, 346,225.84 and 137,718.88

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Solution

The fourth proportional to 250,885.60, 346,225.84 and 137,718.88 is: 190,054.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,885.60 : 346,225.84 = 137,718.88 : x
  2. Step 2: Convert to fraction form
    250,885.60/346,225.84 = 137,718.88/x
  3. Step 3: Cross multiply
    250,885.60x = 346,225.84 × 137,718.88
  4. Step 4: Simplify right side
    250,885.60x = 47,681,834,911.86
  5. Step 5: Solve for x
    x = 47,681,834,911.86/250,885.60
  6. Step 6: Final answer
    x = 190,054.09

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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.