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Finding the Fourth Proportional to 90,898.32, 136,375.32 and 46,556.16

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Solution

The fourth proportional to 90,898.32, 136,375.32 and 46,556.16 is: 69,848.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,898.32 : 136,375.32 = 46,556.16 : x
  2. Step 2: Convert to fraction form
    90,898.32/136,375.32 = 46,556.16/x
  3. Step 3: Cross multiply
    90,898.32x = 136,375.32 × 46,556.16
  4. Step 4: Simplify right side
    90,898.32x = 6,349,111,217.97
  5. Step 5: Solve for x
    x = 6,349,111,217.97/90,898.32
  6. Step 6: Final answer
    x = 69,848.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.