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Finding the Fourth Proportional to 98,814.71, 136,364.15 and 53,492.68

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Solution

The fourth proportional to 98,814.71, 136,364.15 and 53,492.68 is: 73,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,814.71 : 136,364.15 = 53,492.68 : x
  2. Step 2: Convert to fraction form
    98,814.71/136,364.15 = 53,492.68/x
  3. Step 3: Cross multiply
    98,814.71x = 136,364.15 × 53,492.68
  4. Step 4: Simplify right side
    98,814.71x = 7,294,484,298.99
  5. Step 5: Solve for x
    x = 7,294,484,298.99/98,814.71
  6. Step 6: Final answer
    x = 73,819.82

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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.