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Finding the Fourth Proportional to 127,550.79, 176,020.16 and 70,962.21

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Solution

The fourth proportional to 127,550.79, 176,020.16 and 70,962.21 is: 97,927.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,550.79 : 176,020.16 = 70,962.21 : x
  2. Step 2: Convert to fraction form
    127,550.79/176,020.16 = 70,962.21/x
  3. Step 3: Cross multiply
    127,550.79x = 176,020.16 × 70,962.21
  4. Step 4: Simplify right side
    127,550.79x = 12,490,779,203.34
  5. Step 5: Solve for x
    x = 12,490,779,203.34/127,550.79
  6. Step 6: Final answer
    x = 97,927.89

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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.