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Finding the Fourth Proportional to 124,603.50, 186,599.88 and 112,621.98

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Solution

The fourth proportional to 124,603.50, 186,599.88 and 112,621.98 is: 168,656.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,603.50 : 186,599.88 = 112,621.98 : x
  2. Step 2: Convert to fraction form
    124,603.50/186,599.88 = 112,621.98/x
  3. Step 3: Cross multiply
    124,603.50x = 186,599.88 × 112,621.98
  4. Step 4: Simplify right side
    124,603.50x = 21,015,247,953.36
  5. Step 5: Solve for x
    x = 21,015,247,953.36/124,603.50
  6. Step 6: Final answer
    x = 168,656.96

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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.