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Finding the Fourth Proportional to 328,047.30, 492,070.95 and 248,732.10

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Solution

The fourth proportional to 328,047.30, 492,070.95 and 248,732.10 is: 373,098.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,047.30 : 492,070.95 = 248,732.10 : x
  2. Step 2: Convert to fraction form
    328,047.30/492,070.95 = 248,732.10/x
  3. Step 3: Cross multiply
    328,047.30x = 492,070.95 × 248,732.10
  4. Step 4: Simplify right side
    328,047.30x = 122,393,840,742.50
  5. Step 5: Solve for x
    x = 122,393,840,742.50/328,047.30
  6. Step 6: Final answer
    x = 373,098.15

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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.