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Finding the Fourth Proportional to 127,806.65, 176,374.42 and 70,448.22

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Solution

The fourth proportional to 127,806.65, 176,374.42 and 70,448.22 is: 97,219.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,806.65 : 176,374.42 = 70,448.22 : x
  2. Step 2: Convert to fraction form
    127,806.65/176,374.42 = 70,448.22/x
  3. Step 3: Cross multiply
    127,806.65x = 176,374.42 × 70,448.22
  4. Step 4: Simplify right side
    127,806.65x = 12,425,263,942.53
  5. Step 5: Solve for x
    x = 12,425,263,942.53/127,806.65
  6. Step 6: Final answer
    x = 97,219.23

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1.5x scale

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.