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Finding the Fourth Proportional to 98,603.04, 147,924 and 28,482.96

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Solution

The fourth proportional to 98,603.04, 147,924 and 28,482.96 is: 42,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,603.04 : 147,924 = 28,482.96 : x
  2. Step 2: Convert to fraction form
    98,603.04/147,924 = 28,482.96/x
  3. Step 3: Cross multiply
    98,603.04x = 147,924 × 28,482.96
  4. Step 4: Simplify right side
    98,603.04x = 4,213,313,375.04
  5. Step 5: Solve for x
    x = 4,213,313,375.04/98,603.04
  6. Step 6: Final answer
    x = 42,730.06

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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.