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Finding the Fourth Proportional to 64,412.42, 88,889.01 and 36,117.50

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Solution

The fourth proportional to 64,412.42, 88,889.01 and 36,117.50 is: 49,842.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,412.42 : 88,889.01 = 36,117.50 : x
  2. Step 2: Convert to fraction form
    64,412.42/88,889.01 = 36,117.50/x
  3. Step 3: Cross multiply
    64,412.42x = 88,889.01 × 36,117.50
  4. Step 4: Simplify right side
    64,412.42x = 3,210,448,818.68
  5. Step 5: Solve for x
    x = 3,210,448,818.68/64,412.42
  6. Step 6: Final answer
    x = 49,842.08

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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.