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Finding the Fourth Proportional to 156,051.40, 234,077.10 and 56,259.40

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Solution

The fourth proportional to 156,051.40, 234,077.10 and 56,259.40 is: 84,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,051.40 : 234,077.10 = 56,259.40 : x
  2. Step 2: Convert to fraction form
    156,051.40/234,077.10 = 56,259.40/x
  3. Step 3: Cross multiply
    156,051.40x = 234,077.10 × 56,259.40
  4. Step 4: Simplify right side
    156,051.40x = 13,169,037,199.74
  5. Step 5: Solve for x
    x = 13,169,037,199.74/156,051.40
  6. Step 6: Final answer
    x = 84,389.10

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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.