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Finding the Fourth Proportional to 358,543.16, 537,689.34 and 105,756.60

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Solution

The fourth proportional to 358,543.16, 537,689.34 and 105,756.60 is: 158,597.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,543.16 : 537,689.34 = 105,756.60 : x
  2. Step 2: Convert to fraction form
    358,543.16/537,689.34 = 105,756.60/x
  3. Step 3: Cross multiply
    358,543.16x = 537,689.34 × 105,756.60
  4. Step 4: Simplify right side
    358,543.16x = 56,864,196,454.64
  5. Step 5: Solve for x
    x = 56,864,196,454.64/358,543.16
  6. Step 6: Final answer
    x = 158,597.91

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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.