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Finding the Fourth Proportional to 355,273.93, 532,915.12 and 99,090.93

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Solution

The fourth proportional to 355,273.93, 532,915.12 and 99,090.93 is: 148,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,273.93 : 532,915.12 = 99,090.93 : x
  2. Step 2: Convert to fraction form
    355,273.93/532,915.12 = 99,090.93/x
  3. Step 3: Cross multiply
    355,273.93x = 532,915.12 × 99,090.93
  4. Step 4: Simplify right side
    355,273.93x = 52,807,054,851.86
  5. Step 5: Solve for x
    x = 52,807,054,851.86/355,273.93
  6. Step 6: Final answer
    x = 148,637.57

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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.