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Finding the Fourth Proportional to 186,473.34, 257,366.52 and 109,987.74

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Solution

The fourth proportional to 186,473.34, 257,366.52 and 109,987.74 is: 151,802.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,473.34 : 257,366.52 = 109,987.74 : x
  2. Step 2: Convert to fraction form
    186,473.34/257,366.52 = 109,987.74/x
  3. Step 3: Cross multiply
    186,473.34x = 257,366.52 × 109,987.74
  4. Step 4: Simplify right side
    186,473.34x = 28,307,161,886.46
  5. Step 5: Solve for x
    x = 28,307,161,886.46/186,473.34
  6. Step 6: Final answer
    x = 151,802.73

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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.