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Finding the Fourth Proportional to 183,483.86, 253,207.65 and 106,988.20

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Solution

The fourth proportional to 183,483.86, 253,207.65 and 106,988.20 is: 147,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,483.86 : 253,207.65 = 106,988.20 : x
  2. Step 2: Convert to fraction form
    183,483.86/253,207.65 = 106,988.20/x
  3. Step 3: Cross multiply
    183,483.86x = 253,207.65 × 106,988.20
  4. Step 4: Simplify right side
    183,483.86x = 27,090,230,699.73
  5. Step 5: Solve for x
    x = 27,090,230,699.73/183,483.86
  6. Step 6: Final answer
    x = 147,643.67

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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.