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Finding the Fourth Proportional to 93,398.04, 128,888.64 and 53,111.79

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Solution

The fourth proportional to 93,398.04, 128,888.64 and 53,111.79 is: 73,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,398.04 : 128,888.64 = 53,111.79 : x
  2. Step 2: Convert to fraction form
    93,398.04/128,888.64 = 53,111.79/x
  3. Step 3: Cross multiply
    93,398.04x = 128,888.64 × 53,111.79
  4. Step 4: Simplify right side
    93,398.04x = 6,845,506,381.07
  5. Step 5: Solve for x
    x = 6,845,506,381.07/93,398.04
  6. Step 6: Final answer
    x = 73,293.90

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1.5x scale

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.