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Finding the Fourth Proportional to 93,295.58, 128,747.94 and 53,009.40

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Solution

The fourth proportional to 93,295.58, 128,747.94 and 53,009.40 is: 73,153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,295.58 : 128,747.94 = 53,009.40 : x
  2. Step 2: Convert to fraction form
    93,295.58/128,747.94 = 53,009.40/x
  3. Step 3: Cross multiply
    93,295.58x = 128,747.94 × 53,009.40
  4. Step 4: Simplify right side
    93,295.58x = 6,824,851,050.64
  5. Step 5: Solve for x
    x = 6,824,851,050.64/93,295.58
  6. Step 6: Final answer
    x = 73,153.00

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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.