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Finding the Fourth Proportional to 104,566.40, 156,590.40 and 83,830.40

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Solution

The fourth proportional to 104,566.40, 156,590.40 and 83,830.40 is: 125,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,566.40 : 156,590.40 = 83,830.40 : x
  2. Step 2: Convert to fraction form
    104,566.40/156,590.40 = 83,830.40/x
  3. Step 3: Cross multiply
    104,566.40x = 156,590.40 × 83,830.40
  4. Step 4: Simplify right side
    104,566.40x = 13,127,035,868.16
  5. Step 5: Solve for x
    x = 13,127,035,868.16/104,566.40
  6. Step 6: Final answer
    x = 125,537.80

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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.