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Finding the Fourth Proportional to 113,312.98, 170,644.01 and 98,698.42

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Solution

The fourth proportional to 113,312.98, 170,644.01 and 98,698.42 is: 148,635.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,312.98 : 170,644.01 = 98,698.42 : x
  2. Step 2: Convert to fraction form
    113,312.98/170,644.01 = 98,698.42/x
  3. Step 3: Cross multiply
    113,312.98x = 170,644.01 × 98,698.42
  4. Step 4: Simplify right side
    113,312.98x = 16,842,294,169.46
  5. Step 5: Solve for x
    x = 16,842,294,169.46/113,312.98
  6. Step 6: Final answer
    x = 148,635.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.