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Finding the Fourth Proportional to 99,793.95, 149,733.45 and 52,445.40

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Solution

The fourth proportional to 99,793.95, 149,733.45 and 52,445.40 is: 78,690.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,793.95 : 149,733.45 = 52,445.40 : x
  2. Step 2: Convert to fraction form
    99,793.95/149,733.45 = 52,445.40/x
  3. Step 3: Cross multiply
    99,793.95x = 149,733.45 × 52,445.40
  4. Step 4: Simplify right side
    99,793.95x = 7,852,830,678.63
  5. Step 5: Solve for x
    x = 7,852,830,678.63/99,793.95
  6. Step 6: Final answer
    x = 78,690.45

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1.5x scale

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.