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Finding the Fourth Proportional to 107,804.68, 148,770.58 and 62,491.40

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Solution

The fourth proportional to 107,804.68, 148,770.58 and 62,491.40 is: 86,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,804.68 : 148,770.58 = 62,491.40 : x
  2. Step 2: Convert to fraction form
    107,804.68/148,770.58 = 62,491.40/x
  3. Step 3: Cross multiply
    107,804.68x = 148,770.58 × 62,491.40
  4. Step 4: Simplify right side
    107,804.68x = 9,296,881,823.01
  5. Step 5: Solve for x
    x = 9,296,881,823.01/107,804.68
  6. Step 6: Final answer
    x = 86,238.20

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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.