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Finding the Fourth Proportional to 228,045.90, 342,068.85 and 153,396.30

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Solution

The fourth proportional to 228,045.90, 342,068.85 and 153,396.30 is: 230,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,045.90 : 342,068.85 = 153,396.30 : x
  2. Step 2: Convert to fraction form
    228,045.90/342,068.85 = 153,396.30/x
  3. Step 3: Cross multiply
    228,045.90x = 342,068.85 × 153,396.30
  4. Step 4: Simplify right side
    228,045.90x = 52,472,095,935.26
  5. Step 5: Solve for x
    x = 52,472,095,935.26/228,045.90
  6. Step 6: Final answer
    x = 230,094.45

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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.