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Finding the Fourth Proportional to 219,803.40, 329,701.52 and 70,041.67

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Solution

The fourth proportional to 219,803.40, 329,701.52 and 70,041.67 is: 105,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,803.40 : 329,701.52 = 70,041.67 : x
  2. Step 2: Convert to fraction form
    219,803.40/329,701.52 = 70,041.67/x
  3. Step 3: Cross multiply
    219,803.40x = 329,701.52 × 70,041.67
  4. Step 4: Simplify right side
    219,803.40x = 23,092,844,413.19
  5. Step 5: Solve for x
    x = 23,092,844,413.19/219,803.40
  6. Step 6: Final answer
    x = 105,061.36

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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.