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Finding the Fourth Proportional to 355,465.44, 533,140.32 and 118,807.74

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Solution

The fourth proportional to 355,465.44, 533,140.32 and 118,807.74 is: 178,192.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,465.44 : 533,140.32 = 118,807.74 : x
  2. Step 2: Convert to fraction form
    355,465.44/533,140.32 = 118,807.74/x
  3. Step 3: Cross multiply
    355,465.44x = 533,140.32 × 118,807.74
  4. Step 4: Simplify right side
    355,465.44x = 63,341,196,522.08
  5. Step 5: Solve for x
    x = 63,341,196,522.08/355,465.44
  6. Step 6: Final answer
    x = 178,192.28

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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.