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Finding the Fourth Proportional to 291,551.40, 402,373.61 and 162,501.65

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Solution

The fourth proportional to 291,551.40, 402,373.61 and 162,501.65 is: 224,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,551.40 : 402,373.61 = 162,501.65 : x
  2. Step 2: Convert to fraction form
    291,551.40/402,373.61 = 162,501.65/x
  3. Step 3: Cross multiply
    291,551.40x = 402,373.61 × 162,501.65
  4. Step 4: Simplify right side
    291,551.40x = 65,386,374,225.98
  5. Step 5: Solve for x
    x = 65,386,374,225.98/291,551.40
  6. Step 6: Final answer
    x = 224,270.49

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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.