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Finding the Fourth Proportional to 403,873.02, 605,762.46 and 104,330.16

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Solution

The fourth proportional to 403,873.02, 605,762.46 and 104,330.16 is: 156,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,873.02 : 605,762.46 = 104,330.16 : x
  2. Step 2: Convert to fraction form
    403,873.02/605,762.46 = 104,330.16/x
  3. Step 3: Cross multiply
    403,873.02x = 605,762.46 × 104,330.16
  4. Step 4: Simplify right side
    403,873.02x = 63,199,294,373.79
  5. Step 5: Solve for x
    x = 63,199,294,373.79/403,873.02
  6. Step 6: Final answer
    x = 156,483.08

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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.