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Finding the Fourth Proportional to 375,056.40, 562,639.32 and 108,818.40

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Solution

The fourth proportional to 375,056.40, 562,639.32 and 108,818.40 is: 163,243.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,056.40 : 562,639.32 = 108,818.40 : x
  2. Step 2: Convert to fraction form
    375,056.40/562,639.32 = 108,818.40/x
  3. Step 3: Cross multiply
    375,056.40x = 562,639.32 × 108,818.40
  4. Step 4: Simplify right side
    375,056.40x = 61,225,510,579.49
  5. Step 5: Solve for x
    x = 61,225,510,579.49/375,056.40
  6. Step 6: Final answer
    x = 163,243.48

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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.