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Finding the Fourth Proportional to 127,574.51, 176,052.83 and 70,985.88

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Solution

The fourth proportional to 127,574.51, 176,052.83 and 70,985.88 is: 97,960.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,574.51 : 176,052.83 = 70,985.88 : x
  2. Step 2: Convert to fraction form
    127,574.51/176,052.83 = 70,985.88/x
  3. Step 3: Cross multiply
    127,574.51x = 176,052.83 × 70,985.88
  4. Step 4: Simplify right side
    127,574.51x = 12,497,264,709.11
  5. Step 5: Solve for x
    x = 12,497,264,709.11/127,574.51
  6. Step 6: Final answer
    x = 97,960.52

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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.