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Finding the Fourth Proportional to 351,328.95, 526,914.60 and 161,607.11

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Solution

The fourth proportional to 351,328.95, 526,914.60 and 161,607.11 is: 242,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,328.95 : 526,914.60 = 161,607.11 : x
  2. Step 2: Convert to fraction form
    351,328.95/526,914.60 = 161,607.11/x
  3. Step 3: Cross multiply
    351,328.95x = 526,914.60 × 161,607.11
  4. Step 4: Simplify right side
    351,328.95x = 85,153,142,482.21
  5. Step 5: Solve for x
    x = 85,153,142,482.21/351,328.95
  6. Step 6: Final answer
    x = 242,374.40

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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.