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Finding the Fourth Proportional to 93,137.83, 128,526.64 and 52,849.19

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Solution

The fourth proportional to 93,137.83, 128,526.64 and 52,849.19 is: 72,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,137.83 : 128,526.64 = 52,849.19 : x
  2. Step 2: Convert to fraction form
    93,137.83/128,526.64 = 52,849.19/x
  3. Step 3: Cross multiply
    93,137.83x = 128,526.64 × 52,849.19
  4. Step 4: Simplify right side
    93,137.83x = 6,792,528,817.42
  5. Step 5: Solve for x
    x = 6,792,528,817.42/93,137.83
  6. Step 6: Final answer
    x = 72,929.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.