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Finding the Fourth Proportional to 171,276.64, 236,303.68 and 99,597.72

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Solution

The fourth proportional to 171,276.64, 236,303.68 and 99,597.72 is: 137,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,276.64 : 236,303.68 = 99,597.72 : x
  2. Step 2: Convert to fraction form
    171,276.64/236,303.68 = 99,597.72/x
  3. Step 3: Cross multiply
    171,276.64x = 236,303.68 × 99,597.72
  4. Step 4: Simplify right side
    171,276.64x = 23,535,307,755.61
  5. Step 5: Solve for x
    x = 23,535,307,755.61/171,276.64
  6. Step 6: Final answer
    x = 137,411.08

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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.