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Finding the Fourth Proportional to 60,689,611.60, 91,034,417.40 and 60,264,458.80

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Solution

The fourth proportional to 60,689,611.60, 91,034,417.40 and 60,264,458.80 is: 90,396,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,689,611.60 : 91,034,417.40 = 60,264,458.80 : x
  2. Step 2: Convert to fraction form
    60,689,611.60/91,034,417.40 = 60,264,458.80/x
  3. Step 3: Cross multiply
    60,689,611.60x = 91,034,417.40 × 60,264,458.80
  4. Step 4: Simplify right side
    60,689,611.60x = 5,486,139,896,784,303
  5. Step 5: Solve for x
    x = 5,486,139,896,784,303/60,689,611.60
  6. Step 6: Final answer
    x = 90,396,688.20

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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.