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Finding the Fourth Proportional to 292,373.21, 403,470.65 and 163,313.48

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Solution

The fourth proportional to 292,373.21, 403,470.65 and 163,313.48 is: 225,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,373.21 : 403,470.65 = 163,313.48 : x
  2. Step 2: Convert to fraction form
    292,373.21/403,470.65 = 163,313.48/x
  3. Step 3: Cross multiply
    292,373.21x = 403,470.65 × 163,313.48
  4. Step 4: Simplify right side
    292,373.21x = 65,892,197,346.32
  5. Step 5: Solve for x
    x = 65,892,197,346.32/292,373.21
  6. Step 6: Final answer
    x = 225,370.16

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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.