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Finding the Fourth Proportional to 127,806.84, 176,374.68 and 70,448.39

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Solution

The fourth proportional to 127,806.84, 176,374.68 and 70,448.39 is: 97,219.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,806.84 : 176,374.68 = 70,448.39 : x
  2. Step 2: Convert to fraction form
    127,806.84/176,374.68 = 70,448.39/x
  3. Step 3: Cross multiply
    127,806.84x = 176,374.68 × 70,448.39
  4. Step 4: Simplify right side
    127,806.84x = 12,425,311,360.89
  5. Step 5: Solve for x
    x = 12,425,311,360.89/127,806.84
  6. Step 6: Final answer
    x = 97,219.46

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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.