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Finding the Fourth Proportional to 245,543.32, 368,314.98 and 162,417.88

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Solution

The fourth proportional to 245,543.32, 368,314.98 and 162,417.88 is: 243,626.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,543.32 : 368,314.98 = 162,417.88 : x
  2. Step 2: Convert to fraction form
    245,543.32/368,314.98 = 162,417.88/x
  3. Step 3: Cross multiply
    245,543.32x = 368,314.98 × 162,417.88
  4. Step 4: Simplify right side
    245,543.32x = 59,820,938,223.84
  5. Step 5: Solve for x
    x = 59,820,938,223.84/245,543.32
  6. Step 6: Final answer
    x = 243,626.82

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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.