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Finding the Fourth Proportional to 615,113.12, 922,697.64 and 188,617.74

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Solution

The fourth proportional to 615,113.12, 922,697.64 and 188,617.74 is: 282,935.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,113.12 : 922,697.64 = 188,617.74 : x
  2. Step 2: Convert to fraction form
    615,113.12/922,697.64 = 188,617.74/x
  3. Step 3: Cross multiply
    615,113.12x = 922,697.64 × 188,617.74
  4. Step 4: Simplify right side
    615,113.12x = 174,037,143,560.13
  5. Step 5: Solve for x
    x = 174,037,143,560.13/615,113.12
  6. Step 6: Final answer
    x = 282,935.19

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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.