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Finding the Fourth Proportional to 115,246, 172,937.04 and 48,681.82

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Solution

The fourth proportional to 115,246, 172,937.04 and 48,681.82 is: 73,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,246 : 172,937.04 = 48,681.82 : x
  2. Step 2: Convert to fraction form
    115,246/172,937.04 = 48,681.82/x
  3. Step 3: Cross multiply
    115,246x = 172,937.04 × 48,681.82
  4. Step 4: Simplify right side
    115,246x = 8,418,889,852.61
  5. Step 5: Solve for x
    x = 8,418,889,852.61/115,246
  6. Step 6: Final answer
    x = 73,051.47

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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.