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Finding the Fourth Proportional to 366,811.90, 549,526.65 and 188,712.70

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Solution

The fourth proportional to 366,811.90, 549,526.65 and 188,712.70 is: 282,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,811.90 : 549,526.65 = 188,712.70 : x
  2. Step 2: Convert to fraction form
    366,811.90/549,526.65 = 188,712.70/x
  3. Step 3: Cross multiply
    366,811.90x = 549,526.65 × 188,712.70
  4. Step 4: Simplify right side
    366,811.90x = 103,702,657,843.46
  5. Step 5: Solve for x
    x = 103,702,657,843.46/366,811.90
  6. Step 6: Final answer
    x = 282,713.45

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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.