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Finding the Fourth Proportional to 91,316.95, 136,975.47 and 59,753.57

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Solution

The fourth proportional to 91,316.95, 136,975.47 and 59,753.57 is: 89,630.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,316.95 : 136,975.47 = 59,753.57 : x
  2. Step 2: Convert to fraction form
    91,316.95/136,975.47 = 59,753.57/x
  3. Step 3: Cross multiply
    91,316.95x = 136,975.47 × 59,753.57
  4. Step 4: Simplify right side
    91,316.95x = 8,184,773,677.37
  5. Step 5: Solve for x
    x = 8,184,773,677.37/91,316.95
  6. Step 6: Final answer
    x = 89,630.39

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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.