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Finding the Fourth Proportional to 144,655.79, 199,491.80 and 99,253.67

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Solution

The fourth proportional to 144,655.79, 199,491.80 and 99,253.67 is: 136,878.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,655.79 : 199,491.80 = 99,253.67 : x
  2. Step 2: Convert to fraction form
    144,655.79/199,491.80 = 99,253.67/x
  3. Step 3: Cross multiply
    144,655.79x = 199,491.80 × 99,253.67
  4. Step 4: Simplify right side
    144,655.79x = 19,800,291,791.18
  5. Step 5: Solve for x
    x = 19,800,291,791.18/144,655.79
  6. Step 6: Final answer
    x = 136,878.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.