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Finding the Fourth Proportional to 140,476.40, 210,714.60 and 93,237.20

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Solution

The fourth proportional to 140,476.40, 210,714.60 and 93,237.20 is: 139,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,476.40 : 210,714.60 = 93,237.20 : x
  2. Step 2: Convert to fraction form
    140,476.40/210,714.60 = 93,237.20/x
  3. Step 3: Cross multiply
    140,476.40x = 210,714.60 × 93,237.20
  4. Step 4: Simplify right side
    140,476.40x = 19,646,439,303.12
  5. Step 5: Solve for x
    x = 19,646,439,303.12/140,476.40
  6. Step 6: Final answer
    x = 139,855.80

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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.