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Finding the Fourth Proportional to 99,088.60, 148,541.90 and 42,893.32

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Solution

The fourth proportional to 99,088.60, 148,541.90 and 42,893.32 is: 64,300.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,088.60 : 148,541.90 = 42,893.32 : x
  2. Step 2: Convert to fraction form
    99,088.60/148,541.90 = 42,893.32/x
  3. Step 3: Cross multiply
    99,088.60x = 148,541.90 × 42,893.32
  4. Step 4: Simplify right side
    99,088.60x = 6,371,455,250.11
  5. Step 5: Solve for x
    x = 6,371,455,250.11/99,088.60
  6. Step 6: Final answer
    x = 64,300.59

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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.