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Finding the Fourth Proportional to 115,080.96, 172,606.80 and 48,547.52

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Solution

The fourth proportional to 115,080.96, 172,606.80 and 48,547.52 is: 72,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,080.96 : 172,606.80 = 48,547.52 : x
  2. Step 2: Convert to fraction form
    115,080.96/172,606.80 = 48,547.52/x
  3. Step 3: Cross multiply
    115,080.96x = 172,606.80 × 48,547.52
  4. Step 4: Simplify right side
    115,080.96x = 8,379,632,075.14
  5. Step 5: Solve for x
    x = 8,379,632,075.14/115,080.96
  6. Step 6: Final answer
    x = 72,815.10

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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.