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Finding the Fourth Proportional to 353,186.07, 529,779.10 and 103,868.07

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Solution

The fourth proportional to 353,186.07, 529,779.10 and 103,868.07 is: 155,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,186.07 : 529,779.10 = 103,868.07 : x
  2. Step 2: Convert to fraction form
    353,186.07/529,779.10 = 103,868.07/x
  3. Step 3: Cross multiply
    353,186.07x = 529,779.10 × 103,868.07
  4. Step 4: Simplify right side
    353,186.07x = 55,027,132,643.34
  5. Step 5: Solve for x
    x = 55,027,132,643.34/353,186.07
  6. Step 6: Final answer
    x = 155,802.10

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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.