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Finding the Fourth Proportional to 342,813.12, 473,055.84 and 191,889.60

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Solution

The fourth proportional to 342,813.12, 473,055.84 and 191,889.60 is: 264,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,813.12 : 473,055.84 = 191,889.60 : x
  2. Step 2: Convert to fraction form
    342,813.12/473,055.84 = 191,889.60/x
  3. Step 3: Cross multiply
    342,813.12x = 473,055.84 × 191,889.60
  4. Step 4: Simplify right side
    342,813.12x = 90,774,495,915.26
  5. Step 5: Solve for x
    x = 90,774,495,915.26/342,813.12
  6. Step 6: Final answer
    x = 264,792.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.