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Finding the Fourth Proportional to 219,267.40, 329,030.70 and 144,603.40

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Solution

The fourth proportional to 219,267.40, 329,030.70 and 144,603.40 is: 216,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,267.40 : 329,030.70 = 144,603.40 : x
  2. Step 2: Convert to fraction form
    219,267.40/329,030.70 = 144,603.40/x
  3. Step 3: Cross multiply
    219,267.40x = 329,030.70 × 144,603.40
  4. Step 4: Simplify right side
    219,267.40x = 47,578,957,924.38
  5. Step 5: Solve for x
    x = 47,578,957,924.38/219,267.40
  6. Step 6: Final answer
    x = 216,990.57

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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.