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Finding the Fourth Proportional to 186,412.40, 257,275.95 and 134,896.76

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Solution

The fourth proportional to 186,412.40, 257,275.95 and 134,896.76 is: 186,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,412.40 : 257,275.95 = 134,896.76 : x
  2. Step 2: Convert to fraction form
    186,412.40/257,275.95 = 134,896.76/x
  3. Step 3: Cross multiply
    186,412.40x = 257,275.95 × 134,896.76
  4. Step 4: Simplify right side
    186,412.40x = 34,705,692,080.92
  5. Step 5: Solve for x
    x = 34,705,692,080.92/186,412.40
  6. Step 6: Final answer
    x = 186,176.95

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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.