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Finding the Fourth Proportional to 425,084.16, 637,232.40 and 188,300.64

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Solution

The fourth proportional to 425,084.16, 637,232.40 and 188,300.64 is: 282,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,084.16 : 637,232.40 = 188,300.64 : x
  2. Step 2: Convert to fraction form
    425,084.16/637,232.40 = 188,300.64/x
  3. Step 3: Cross multiply
    425,084.16x = 637,232.40 × 188,300.64
  4. Step 4: Simplify right side
    425,084.16x = 119,991,268,748.74
  5. Step 5: Solve for x
    x = 119,991,268,748.74/425,084.16
  6. Step 6: Final answer
    x = 282,276.50

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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.