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Finding the Fourth Proportional to 124,857.96, 172,303.74 and 67,497.32

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Solution

The fourth proportional to 124,857.96, 172,303.74 and 67,497.32 is: 93,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,857.96 : 172,303.74 = 67,497.32 : x
  2. Step 2: Convert to fraction form
    124,857.96/172,303.74 = 67,497.32/x
  3. Step 3: Cross multiply
    124,857.96x = 172,303.74 × 67,497.32
  4. Step 4: Simplify right side
    124,857.96x = 11,630,039,814.46
  5. Step 5: Solve for x
    x = 11,630,039,814.46/124,857.96
  6. Step 6: Final answer
    x = 93,146.16

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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.