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Finding the Fourth Proportional to 371,168.94, 556,748.54 and 90,688.62

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Solution

The fourth proportional to 371,168.94, 556,748.54 and 90,688.62 is: 136,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,168.94 : 556,748.54 = 90,688.62 : x
  2. Step 2: Convert to fraction form
    371,168.94/556,748.54 = 90,688.62/x
  3. Step 3: Cross multiply
    371,168.94x = 556,748.54 × 90,688.62
  4. Step 4: Simplify right side
    371,168.94x = 50,490,756,779.61
  5. Step 5: Solve for x
    x = 50,490,756,779.61/371,168.94
  6. Step 6: Final answer
    x = 136,031.74

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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.