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Finding the Fourth Proportional to 152,603.70, 228,905.55 and 130,053.30

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Solution

The fourth proportional to 152,603.70, 228,905.55 and 130,053.30 is: 195,079.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,603.70 : 228,905.55 = 130,053.30 : x
  2. Step 2: Convert to fraction form
    152,603.70/228,905.55 = 130,053.30/x
  3. Step 3: Cross multiply
    152,603.70x = 228,905.55 × 130,053.30
  4. Step 4: Simplify right side
    152,603.70x = 29,769,922,165.82
  5. Step 5: Solve for x
    x = 29,769,922,165.82/152,603.70
  6. Step 6: Final answer
    x = 195,079.95

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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.