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Finding the Fourth Proportional to 305,088.64, 457,603.84 and 186,699.04

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Solution

The fourth proportional to 305,088.64, 457,603.84 and 186,699.04 is: 280,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,088.64 : 457,603.84 = 186,699.04 : x
  2. Step 2: Convert to fraction form
    305,088.64/457,603.84 = 186,699.04/x
  3. Step 3: Cross multiply
    305,088.64x = 457,603.84 × 186,699.04
  4. Step 4: Simplify right side
    305,088.64x = 85,434,197,628.31
  5. Step 5: Solve for x
    x = 85,434,197,628.31/305,088.64
  6. Step 6: Final answer
    x = 280,030.74

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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.