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Finding the Fourth Proportional to 243,130.95, 364,447.01 and 93,330.90

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Solution

The fourth proportional to 243,130.95, 364,447.01 and 93,330.90 is: 139,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,130.95 : 364,447.01 = 93,330.90 : x
  2. Step 2: Convert to fraction form
    243,130.95/364,447.01 = 93,330.90/x
  3. Step 3: Cross multiply
    243,130.95x = 364,447.01 × 93,330.90
  4. Step 4: Simplify right side
    243,130.95x = 34,014,166,978.95
  5. Step 5: Solve for x
    x = 34,014,166,978.95/243,130.95
  6. Step 6: Final answer
    x = 139,900.60

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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.