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Finding the Fourth Proportional to 445,903.95, 668,854.10 and 161,527.91

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Solution

The fourth proportional to 445,903.95, 668,854.10 and 161,527.91 is: 242,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,903.95 : 668,854.10 = 161,527.91 : x
  2. Step 2: Convert to fraction form
    445,903.95/668,854.10 = 161,527.91/x
  3. Step 3: Cross multiply
    445,903.95x = 668,854.10 × 161,527.91
  4. Step 4: Simplify right side
    445,903.95x = 108,038,607,174.22
  5. Step 5: Solve for x
    x = 108,038,607,174.22/445,903.95
  6. Step 6: Final answer
    x = 242,291.21

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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.