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Finding the Fourth Proportional to 262,192.80, 393,386.40 and 104,534.40

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Solution

The fourth proportional to 262,192.80, 393,386.40 and 104,534.40 is: 156,840.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,192.80 : 393,386.40 = 104,534.40 : x
  2. Step 2: Convert to fraction form
    262,192.80/393,386.40 = 104,534.40/x
  3. Step 3: Cross multiply
    262,192.80x = 393,386.40 × 104,534.40
  4. Step 4: Simplify right side
    262,192.80x = 41,122,411,292.16
  5. Step 5: Solve for x
    x = 41,122,411,292.16/262,192.80
  6. Step 6: Final answer
    x = 156,840.35

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1.5x scale

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.