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Finding the Fourth Proportional to 157,007.93, 216,668.85 and 85,386.41

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Solution

The fourth proportional to 157,007.93, 216,668.85 and 85,386.41 is: 117,832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,007.93 : 216,668.85 = 85,386.41 : x
  2. Step 2: Convert to fraction form
    157,007.93/216,668.85 = 85,386.41/x
  3. Step 3: Cross multiply
    157,007.93x = 216,668.85 × 85,386.41
  4. Step 4: Simplify right side
    157,007.93x = 18,500,575,260.33
  5. Step 5: Solve for x
    x = 18,500,575,260.33/157,007.93
  6. Step 6: Final answer
    x = 117,832.11

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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.