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Finding the Fourth Proportional to 153,885.60, 230,828.40 and 70,779.60

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Solution

The fourth proportional to 153,885.60, 230,828.40 and 70,779.60 is: 106,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,885.60 : 230,828.40 = 70,779.60 : x
  2. Step 2: Convert to fraction form
    153,885.60/230,828.40 = 70,779.60/x
  3. Step 3: Cross multiply
    153,885.60x = 230,828.40 × 70,779.60
  4. Step 4: Simplify right side
    153,885.60x = 16,337,941,820.64
  5. Step 5: Solve for x
    x = 16,337,941,820.64/153,885.60
  6. Step 6: Final answer
    x = 106,169.40

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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.