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Finding the Fourth Proportional to 113,085.80, 169,628.70 and 101,810.60

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Solution

The fourth proportional to 113,085.80, 169,628.70 and 101,810.60 is: 152,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,085.80 : 169,628.70 = 101,810.60 : x
  2. Step 2: Convert to fraction form
    113,085.80/169,628.70 = 101,810.60/x
  3. Step 3: Cross multiply
    113,085.80x = 169,628.70 × 101,810.60
  4. Step 4: Simplify right side
    113,085.80x = 17,269,999,724.22
  5. Step 5: Solve for x
    x = 17,269,999,724.22/113,085.80
  6. Step 6: Final answer
    x = 152,715.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.