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Finding the Fourth Proportional to 357,661.44, 536,575.14 and 104,931.72

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Solution

The fourth proportional to 357,661.44, 536,575.14 and 104,931.72 is: 157,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,661.44 : 536,575.14 = 104,931.72 : x
  2. Step 2: Convert to fraction form
    357,661.44/536,575.14 = 104,931.72/x
  3. Step 3: Cross multiply
    357,661.44x = 536,575.14 × 104,931.72
  4. Step 4: Simplify right side
    357,661.44x = 56,303,752,349.44
  5. Step 5: Solve for x
    x = 56,303,752,349.44/357,661.44
  6. Step 6: Final answer
    x = 157,421.92

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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.