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Finding the Fourth Proportional to 98,953.20, 148,602.60 and 95,842.80

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Solution

The fourth proportional to 98,953.20, 148,602.60 and 95,842.80 is: 143,931.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,953.20 : 148,602.60 = 95,842.80 : x
  2. Step 2: Convert to fraction form
    98,953.20/148,602.60 = 95,842.80/x
  3. Step 3: Cross multiply
    98,953.20x = 148,602.60 × 95,842.80
  4. Step 4: Simplify right side
    98,953.20x = 14,242,489,271.28
  5. Step 5: Solve for x
    x = 14,242,489,271.28/98,953.20
  6. Step 6: Final answer
    x = 143,931.57

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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.