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Finding the Fourth Proportional to 113,590.79, 156,782.01 and 70,602.75

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Solution

The fourth proportional to 113,590.79, 156,782.01 and 70,602.75 is: 97,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,590.79 : 156,782.01 = 70,602.75 : x
  2. Step 2: Convert to fraction form
    113,590.79/156,782.01 = 70,602.75/x
  3. Step 3: Cross multiply
    113,590.79x = 156,782.01 × 70,602.75
  4. Step 4: Simplify right side
    113,590.79x = 11,069,241,056.53
  5. Step 5: Solve for x
    x = 11,069,241,056.53/113,590.79
  6. Step 6: Final answer
    x = 97,448.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.