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Finding the Fourth Proportional to 230,344.32, 317,885.98 and 134,881.76

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Solution

The fourth proportional to 230,344.32, 317,885.98 and 134,881.76 is: 186,143.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,344.32 : 317,885.98 = 134,881.76 : x
  2. Step 2: Convert to fraction form
    230,344.32/317,885.98 = 134,881.76/x
  3. Step 3: Cross multiply
    230,344.32x = 317,885.98 × 134,881.76
  4. Step 4: Simplify right side
    230,344.32x = 42,877,020,461.72
  5. Step 5: Solve for x
    x = 42,877,020,461.72/230,344.32
  6. Step 6: Final answer
    x = 186,143.16

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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.