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Finding the Fourth Proportional to 89,878.48, 124,031.48 and 49,592.64

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Solution

The fourth proportional to 89,878.48, 124,031.48 and 49,592.64 is: 68,437.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,878.48 : 124,031.48 = 49,592.64 : x
  2. Step 2: Convert to fraction form
    89,878.48/124,031.48 = 49,592.64/x
  3. Step 3: Cross multiply
    89,878.48x = 124,031.48 × 49,592.64
  4. Step 4: Simplify right side
    89,878.48x = 6,151,048,536.31
  5. Step 5: Solve for x
    x = 6,151,048,536.31/89,878.48
  6. Step 6: Final answer
    x = 68,437.39

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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.