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Finding the Fourth Proportional to 243,611.70, 365,417.55 and 168,816.30

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Solution

The fourth proportional to 243,611.70, 365,417.55 and 168,816.30 is: 253,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,611.70 : 365,417.55 = 168,816.30 : x
  2. Step 2: Convert to fraction form
    243,611.70/365,417.55 = 168,816.30/x
  3. Step 3: Cross multiply
    243,611.70x = 365,417.55 × 168,816.30
  4. Step 4: Simplify right side
    243,611.70x = 61,688,438,746.07
  5. Step 5: Solve for x
    x = 61,688,438,746.07/243,611.70
  6. Step 6: Final answer
    x = 253,224.45

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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.