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Finding the Fourth Proportional to 127,424.55, 175,830.57 and 70,054.41

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Solution

The fourth proportional to 127,424.55, 175,830.57 and 70,054.41 is: 96,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,424.55 : 175,830.57 = 70,054.41 : x
  2. Step 2: Convert to fraction form
    127,424.55/175,830.57 = 70,054.41/x
  3. Step 3: Cross multiply
    127,424.55x = 175,830.57 × 70,054.41
  4. Step 4: Simplify right side
    127,424.55x = 12,317,706,841.31
  5. Step 5: Solve for x
    x = 12,317,706,841.31/127,424.55
  6. Step 6: Final answer
    x = 96,666.67

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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.