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Finding the Fourth Proportional to 258,893.00, 357,088.29 and 172,808.57

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Solution

The fourth proportional to 258,893.00, 357,088.29 and 172,808.57 is: 238,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,893.00 : 357,088.29 = 172,808.57 : x
  2. Step 2: Convert to fraction form
    258,893.00/357,088.29 = 172,808.57/x
  3. Step 3: Cross multiply
    258,893.00x = 357,088.29 × 172,808.57
  4. Step 4: Simplify right side
    258,893.00x = 61,707,916,758.65
  5. Step 5: Solve for x
    x = 61,707,916,758.65/258,893.00
  6. Step 6: Final answer
    x = 238,352.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.