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Finding the Fourth Proportional to 185,668.72, 256,151.06 and 105,077.76

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Solution

The fourth proportional to 185,668.72, 256,151.06 and 105,077.76 is: 144,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,668.72 : 256,151.06 = 105,077.76 : x
  2. Step 2: Convert to fraction form
    185,668.72/256,151.06 = 105,077.76/x
  3. Step 3: Cross multiply
    185,668.72x = 256,151.06 × 105,077.76
  4. Step 4: Simplify right side
    185,668.72x = 26,915,779,606.43
  5. Step 5: Solve for x
    x = 26,915,779,606.43/185,668.72
  6. Step 6: Final answer
    x = 144,966.69

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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.