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Finding the Fourth Proportional to 157,125.69, 216,815.91 and 92,590.76

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Solution

The fourth proportional to 157,125.69, 216,815.91 and 92,590.76 is: 127,764.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,125.69 : 216,815.91 = 92,590.76 : x
  2. Step 2: Convert to fraction form
    157,125.69/216,815.91 = 92,590.76/x
  3. Step 3: Cross multiply
    157,125.69x = 216,815.91 × 92,590.76
  4. Step 4: Simplify right side
    157,125.69x = 20,075,150,081.82
  5. Step 5: Solve for x
    x = 20,075,150,081.82/157,125.69
  6. Step 6: Final answer
    x = 127,764.91

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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.