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Finding the Fourth Proportional to 172,036.58, 258,055.74 and 53,698.01

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Solution

The fourth proportional to 172,036.58, 258,055.74 and 53,698.01 is: 80,547.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,036.58 : 258,055.74 = 53,698.01 : x
  2. Step 2: Convert to fraction form
    172,036.58/258,055.74 = 53,698.01/x
  3. Step 3: Cross multiply
    172,036.58x = 258,055.74 × 53,698.01
  4. Step 4: Simplify right side
    172,036.58x = 13,857,078,416.80
  5. Step 5: Solve for x
    x = 13,857,078,416.80/172,036.58
  6. Step 6: Final answer
    x = 80,547.28

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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.