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Finding the Fourth Proportional to 99,235.60, 148,830.95 and 45,898.31

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Solution

The fourth proportional to 99,235.60, 148,830.95 and 45,898.31 is: 68,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,235.60 : 148,830.95 = 45,898.31 : x
  2. Step 2: Convert to fraction form
    99,235.60/148,830.95 = 45,898.31/x
  3. Step 3: Cross multiply
    99,235.60x = 148,830.95 × 45,898.31
  4. Step 4: Simplify right side
    99,235.60x = 6,831,088,730.34
  5. Step 5: Solve for x
    x = 6,831,088,730.34/99,235.60
  6. Step 6: Final answer
    x = 68,837.08

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1.5x scale

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.