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Finding the Fourth Proportional to 127,030.82, 175,309.54 and 70,440.98

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Solution

The fourth proportional to 127,030.82, 175,309.54 and 70,440.98 is: 97,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,030.82 : 175,309.54 = 70,440.98 : x
  2. Step 2: Convert to fraction form
    127,030.82/175,309.54 = 70,440.98/x
  3. Step 3: Cross multiply
    127,030.82x = 175,309.54 × 70,440.98
  4. Step 4: Simplify right side
    127,030.82x = 12,348,975,800.95
  5. Step 5: Solve for x
    x = 12,348,975,800.95/127,030.82
  6. Step 6: Final answer
    x = 97,212.44

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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.